An 8 X 5 metre entrance drops us into a 17-metre-deep vertical section, which widens as it deepens. The floor, full of blocks, has a strong inclination towards the NE, where -26 metres of depth is reached. Halfway down the shaft there is a window with a short passage.

From the Fondo de l'Infern we will go up the fondo along a path on the hydrographic left until we find a new torrent, we will cross it and follow it on the hydrographic right and along the torrent bed when there is no other option, until we find a stone wall on the other side of the torrent. At this point we will have to go up the hydrographic left slope for about 30 metres, walking diagonally with respect to the torrent and towards its head, until we find the wide entrance of the cavity, but very hidden by the vegetation.